1;;; autoconf-mode.el --- autoconf code editing commands for Emacs
2
3;; Author: Martin Buchholz (martin@xemacs.org)
4;; Maintainer: Martin Buchholz
5;; Keywords: languages, faces, m4, configure
6
7;; This file is part of Autoconf
8
9;; Copyright 2001, 2006 Free Software Foundation, Inc.
10;;
11;; This program is free software; you can redistribute it and/or modify
12;; it under the terms of the GNU General Public License as published by
13;; the Free Software Foundation; either version 2, or (at your option)
14;; any later version.
15;;
16;; This program is distributed in the hope that it will be useful,
17;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19;; GNU General Public License for more details.
20;;
21;; You should have received a copy of the GNU General Public License
22;; along with this program; if not, write to the Free Software
23;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
24;; 02110-1301, USA.
25
26;; A major mode for editing autoconf input (like configure.in).
27;; Derived from m4-mode.el by Andrew Csillag (drew@staff.prodigy.com)
28
29;;; Your should add the following to your Emacs configuration file:
30
31;;  (autoload 'autoconf-mode "autoconf-mode"
32;;            "Major mode for editing autoconf files." t)
33;;  (setq auto-mode-alist
34;;        (cons '("\\.ac\\'\\|configure\\.in\\'" . autoconf-mode)
35;;              auto-mode-alist))
36
37;;; Code:
38
39;;thank god for make-regexp.el!
40(defvar autoconf-font-lock-keywords
41  `(("\\bdnl \\(.*\\)"  1 font-lock-comment-face t)
42    ("\\$[0-9*#@]" . font-lock-variable-name-face)
43    ("\\b\\(m4_\\)?\\(builtin\\|change\\(com\\|quote\\|word\\)\\|d\\(e\\(bug\\(file\\|mode\\)\\|cr\\|f\\(ine\\|n\\)\\)\\|iv\\(ert\\|num\\)\\|nl\\|umpdef\\)\\|e\\(rrprint\\|syscmd\\|val\\)\\|f\\(ile\\|ormat\\)\\|gnu\\|i\\(f\\(def\\|else\\)\\|n\\(c\\(lude\\|r\\)\\|d\\(ex\\|ir\\)\\)\\)\\|l\\(en\\|ine\\)\\|m\\(4\\(exit\\|wrap\\)\\|aketemp\\|kstemp\\)\\|p\\(atsubst\\|opdef\\|ushdef\\)\\|regexp\\|s\\(hift\\|include\\|ubstr\\|ys\\(cmd\\|val\\)\\)\\|tra\\(ceo\\(ff\\|n\\)\\|nslit\\)\\|un\\(d\\(efine\\|ivert\\)\\|ix\\)\\)\\b" . font-lock-keyword-face)
44    ("^\\(\\(m4_\\)?define\\|A._DEFUN\\|m4_defun\\)(\\[?\\([A-Za-z0-9_]+\\)" 3 font-lock-function-name-face)
45    "default font-lock-keywords")
46)
47
48(defvar autoconf-mode-syntax-table nil
49  "syntax table used in autoconf mode")
50(setq autoconf-mode-syntax-table (make-syntax-table))
51(modify-syntax-entry ?\" "\""  autoconf-mode-syntax-table)
52;;(modify-syntax-entry ?\' "\""  autoconf-mode-syntax-table)
53(modify-syntax-entry ?#  "<\n" autoconf-mode-syntax-table)
54(modify-syntax-entry ?\n ">#"  autoconf-mode-syntax-table)
55(modify-syntax-entry ?\( "()"   autoconf-mode-syntax-table)
56(modify-syntax-entry ?\) ")("   autoconf-mode-syntax-table)
57(modify-syntax-entry ?\[ "(]"  autoconf-mode-syntax-table)
58(modify-syntax-entry ?\] ")["  autoconf-mode-syntax-table)
59(modify-syntax-entry ?*  "."   autoconf-mode-syntax-table)
60(modify-syntax-entry ?_  "_"   autoconf-mode-syntax-table)
61
62(defvar autoconf-mode-map
63  (let ((map (make-sparse-keymap)))
64    (define-key map '[(control c) (\;)] 'comment-region)
65    map))
66
67(defun autoconf-current-defun ()
68  "Autoconf value for `add-log-current-defun-function'.
69This tells add-log.el how to find the current macro."
70  (save-excursion
71    (if (re-search-backward "^\\(m4_define\\|m4_defun\\|A._DEFUN\\)(\\[*\\([A-Za-z0-9_]+\\)" nil t)
72	(buffer-substring (match-beginning 2)
73			  (match-end 2))
74      nil)))
75
76;;;###autoload
77(defun autoconf-mode ()
78  "A major-mode to edit Autoconf files like configure.ac.
79\\{autoconf-mode-map}
80"
81  (interactive)
82  (kill-all-local-variables)
83  (use-local-map autoconf-mode-map)
84
85  (make-local-variable 'add-log-current-defun-function)
86  (setq add-log-current-defun-function 'autoconf-current-defun)
87
88  (make-local-variable 'comment-start)
89  (setq comment-start "# ")
90  (make-local-variable 'parse-sexp-ignore-comments)
91  (setq parse-sexp-ignore-comments t)
92
93  (make-local-variable	'font-lock-defaults)
94  (setq major-mode 'autoconf-mode)
95  (setq mode-name "Autoconf")
96  (setq font-lock-defaults `(autoconf-font-lock-keywords nil))
97  (set-syntax-table autoconf-mode-syntax-table)
98  (run-hooks 'autoconf-mode-hook))
99
100(provide 'autoconf-mode)
101
102;;; autoconf-mode.el ends here
103